Filter element



FIG. 1 is a bottom perspective view of the claimed design;

FIG. 2 is a top perspective view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a left side elevation view thereof; and,

FIG. 8 is a right side elevation view thereof.

The broken lines formed by dashes show unclaimed subject matter and form no part of the claimed design. 

CLAIM We claim the ornamental design for a filter element, as shown and described. 